GHSA-64H7-35X7-95W2
Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-10-15 03:35In the Linux kernel, the following vulnerability has been resolved:
net: hv_netvsc: reject RSS hash key programming without RX indirection table
RSS configuration requires a valid RX indirection table. When the device reports a single receive queue, rndis_filter_device_add() does not allocate an indirection table, accepting RSS hash key updates in this state leads to a hang.
Fix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return -EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device capabilities and prevents incorrect behavior.
{
"affected": [],
"aliases": [
"CVE-2026-23054"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-04T17:16:16Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hv_netvsc: reject RSS hash key programming without RX indirection table\n\nRSS configuration requires a valid RX indirection table. When the device\nreports a single receive queue, rndis_filter_device_add() does not\nallocate an indirection table, accepting RSS hash key updates in this\nstate leads to a hang.\n\nFix this by gating netvsc_set_rxfh() on ndc-\u003erx_table_sz and return\n-EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device\ncapabilities and prevents incorrect behavior.",
"id": "GHSA-64h7-35x7-95w2",
"modified": "2026-10-15T03:35:13Z",
"published": "2026-02-04T18:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23054"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4cd55c609e85ae2313248ef1a33619a3eef44a16"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8288136f508e78eb3563e7073975999cf225a2f9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/82c9039c8ebb715753a40434df714f865a3aec9c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d23564955811da493f34412d7de60fa268c8cb50"
}
],
"schema_version": "1.4.0",
"severity": []
}
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